Science: The Shake

In the process of building such intricate gadgets as radar, sonar and
the proximity fuse, electronics engineers learned to measure time down
to fractions as small as one millionth of a second. Last week at
Brookhaven National Laboratory's nuclear science symposium, scientists
agreed that one millionth is still too thick a slice of time for modern
work: measurements for atomic experiments must be made a great deal
faster than that.

In testing atomic weapons, the AEC often spots instruments close to the
center of the blast. Information coming back from them must be recorded...